Potassium Thiocyanate AGR ACS (KSCN)

Potassium thiocyanate, AGR reagent grade, meeting ACS specifications. CAS: 333-20-0. EC: 206-370-1. M.W.: 97.18. TARIC: 28429080. EC INDEX: 615-004-00-3. Colourless to white deliquescent crystals, purity ≥ 98.5%.

Typical Applications

Standard reagent for Volhard volumetry—back-precipitation of halides. Used in colorimetric determination of iron, organic synthesis, and as a ligand in coordination chemistry. ACS grade ensures the impurity limits required by pharmacopoeial methods and ASTM standards.

Purity Specifications

• Appearance: Colourless to white deliquescent crystals
• Assay: ≥ 98.5%
• Water-insoluble substances (H2O): ≤ 0.005%
• pH (5% in water): 5.3–8.5
• Chlorides (Cl-): ≤ 0.005%
• Sulphates (SO4): ≤ 0.005%
• Ammonium (NH4): ≤ 0.003%
• Heavy metals (Pb): ≤ 0.0005%
• Iron (Fe): ≤ 0.0002%
• Sodium (Na): ≤ 0.005%
• Iodine-consuming substances: Passes ACS test

Identification Data

• Formula: KSCN
• M.W.: 97.18
• CAS: 333-20-0
• EC: 206-370-1
• EC INDEX: 615-004-00-3
• TARIC: 28429080
• Grade: AGR ACS

Storage and Precautions

Deliquescent material—store in a tightly sealed container, in a dry location away from heat sources. Consult the Safety Data Sheet before use. GHS hazard classification: irritant.